Invective (noun), from Middle English "invectif", or Old French and Late Latin "invectus", is an abusive, reproachful or venomous language used to express blame or censure; also, a rude expression or discourse intended to offend or hurt. Vituperation, or deeply-seated ill will, vitriol. Also: Invectivus, scolding.
Read more about Invective: The Genre of Invective